The previous view was that as long as there is gout, there must be hyperuricemia. But through clinical practice in recent years, it was found that patients with gout have normal blood uric acid instead. There are many patients who do so, so the incidence is not low, especially during the gout attack itself, often the blood uric acid is still lower than before, or even normal. It is not true that patients with gout attacks must have hyperuricemia. Therefore, in the clinical process, the general public should also pay attention to this issue. Even if you have joint pain and have never had hyperuricemia, you still need to see if it is gout and come to the hospital to confirm the diagnosis, rather than simply diagnose yourself. If the uric acid is normal, it is not correct to rule out gout. Therefore, in the clinical process, and the medical community should also pay attention to the relationship between gout and hyperuric acid, even some patients are hyperuricemia, but never had pain.